EP3141454B1 - Trolley for carrying goods - Google Patents

Trolley for carrying goods Download PDF

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Publication number
EP3141454B1
EP3141454B1 EP16186164.6A EP16186164A EP3141454B1 EP 3141454 B1 EP3141454 B1 EP 3141454B1 EP 16186164 A EP16186164 A EP 16186164A EP 3141454 B1 EP3141454 B1 EP 3141454B1
Authority
EP
European Patent Office
Prior art keywords
trolley
posts
hooks
plate
shelves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16186164.6A
Other languages
German (de)
French (fr)
Other versions
EP3141454A1 (en
Inventor
Wim Nowé
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Container Centralen AS
Original Assignee
Container Centralen AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Container Centralen AS filed Critical Container Centralen AS
Priority to PL16186164T priority Critical patent/PL3141454T3/en
Publication of EP3141454A1 publication Critical patent/EP3141454A1/en
Application granted granted Critical
Publication of EP3141454B1 publication Critical patent/EP3141454B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/002—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by a rectangular shape, involving sidewalls or racks
    • B62B3/005—Details of storage means, e.g. drawers, bins or racks
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/143—Equipment for handling produce in greenhouses
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B47/00—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements
    • A47B47/0083—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements with four vertical uprights
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/30—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports
    • A47B57/32—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of grooved or notched ledges, uprights or side walls
    • A47B57/34—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of grooved or notched ledges, uprights or side walls the grooved or notched parts being the side walls or uprights themselves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/30—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports
    • A47B57/40—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of hooks coacting with openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/006—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor for stacking objects like trays, bobbins, chains
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons
    • A47B2031/003—Service or tea tables, trolleys, or wagons with drawers, trays or shelves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons
    • A47B2031/004—Service or tea tables, trolleys, or wagons having four vertical uprights
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons
    • A47B2031/004—Service or tea tables, trolleys, or wagons having four vertical uprights
    • A47B2031/005—Service or tea tables, trolleys, or wagons having four vertical uprights with movable trays
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B47/00—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/06—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of the shelves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/06—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of the shelves
    • A47B57/16—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of the shelves consisting of hooks coacting with openings
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/02—Shelves
    • A47B96/021—Structural features of shelf bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/02—Shelves
    • A47B96/024—Shelves characterised by support bracket location means, e.g. fixing means between support bracket and shelf
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/10—Adjustable or foldable or dismountable display stands
    • A47F5/13—Adjustable or foldable or dismountable display stands made of tubes or wire
    • A47F5/135—Adjustable or foldable or dismountable display stands made of tubes or wire adapted for regular transport to a display area
    • A47F5/137—Adjustable or foldable or dismountable display stands made of tubes or wire adapted for regular transport to a display area having wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
    • B62B2202/70—Flowers; Pots; Plants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Definitions

  • the invention relates to a method of modifying a trolley comprising a plurality of rectangular and elongated shelves comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks, preferably a hook at each corner of the plate, and a plurality of posts, typically four, i.e. one at each corner of the trolley, provided with a series of openings, e.g. slots, receiving the hooks.
  • the invention further relates to a pool of trolleys and a trolley.
  • Trolleys for potted plants, flower et cetera are known in the art, e.g. from EP 2 340 978 , which relates to a "holder (20) for the reduction of noise from a shelf mounted on the pillars (50) of a load carrier by means of holders.
  • the holder is introduced into complementary slots in the pillars (50) and is configured with a notch (22) having a carrier face.
  • the holder is able to engage with the slot in such a manner that the holder has bearing on the pillar.
  • the holder comprises a resilient element (30) arranged in the notch to the effect that the resilient element (30) causes the carrier face to not enter into contact with the pillar when the shelf is not loaded with goods; and that the resilient element is compressed when a load of goods is loaded onto the shelf.”
  • DK 2000 01677 relates to a method and installation for separating and assembly of shelf containers which involve the containers having a base frame, removable corner uprights and shelves.
  • EP1686037 relates to a shelf for a trolley comprising a plate providing a surface for carrying goods, and hooks for mounting the shelf in the trolley.
  • One or more of the hooks are formed from a metal stripe bent about an axis extending perpendicular to the central plane plate.
  • US 2003/160409 relates to a wheeled agricultural cart for transporting plant materials having at least one removable shelf.
  • the cart has vertical pillars at each corner thereof with a plurality of substantially rectangular vertical slots.
  • Each shelf has a frame including downward facing hook members at each corner thereof. The shelf is removably attached to the cart by insertion of each hook member into a slot on a corresponding vertical pillar.
  • a container shelf having hooks extending in lateral direction and posts comprising series of openings on adjoining sides.
  • the trolley according to the present invention is intended for use as returnable transport trolley, i.e. a trolley that is part of a vast and open pool of trolleys, e.g. hundreds of thousands or more, for moving goods in standard sizes.
  • a vast and open pool of trolleys e.g. hundreds of thousands or more, for moving goods in standard sizes.
  • Such a pool facilitates logistics from producers via wholesalers, cross-docking, and/or storage to retailers and vice versa.
  • An open pool enables free exchange of trolleys, which saves time, transport costs, and administration. Empty trolleys can be exchanged for trolleys carrying goods, or the other way round, all through the supply chain.
  • Such pools are typically owned, managed, and maintained by one or few entities and items from the pool are hired and used by many entities. Maintaining a pool is a costly affair, especially when the pool ages and/or when similar, cheaper items of an inferior quality are added to the pool by third parties to avoid having to hire shelfs.
  • Replacing a pool requires much time and involves complicated logistics, especially when the pool comprises millions or tens of millions of items or parts, such as shelves and posts. Implementing innovations in the new pool may complicate logistics.
  • JP H10 167075 discloses a trolley wherein the hooks extend in lateral direction, i.e. in a direction parallel to or having a component parallel to the short sides of the shelf, and a series of openings is provided in precisely one side of the posts, or in precisely two and opposite sides of the posts.
  • the present invention addresses the vastly complex replacement of an existing pool of millions of trolleys comprising tens of millions of shelves with a new pool.
  • a method is proposed of modifying a trolley comprising a plurality of rectangular and elongated shelves comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks extending in longitudinal direction, and a plurality of posts provided with a series of openings receiving the hooks, wherein the method comprises the steps of removing the shelves from the trolley, turning the posts a quarter turn, and placing shelves comprising a plate and hooks extending in transverse direction in the trolley.
  • the combination of such turned posts and shelves having such hooks prevents or at least hinders existing shelves having hooks extending in longitudinal direction from being used in the new pool.
  • the trolley comprises a rectangular and elongated frame provided with a holder for a post at each corner and a post is placed in each holder.
  • the holders and posts all have a square cross-section with the posts having outer dimensions that are slightly smaller than de inner dimensions of the holders, i.e. the posts are slidably and removably positioned in de holders in one of four positions.
  • one or more of the hooks are formed from a metal strip bent about an axis extending perpendicular to the central plane of the plate.
  • the hooks comprise two portions of a strip, preferably diverging or parallel portions, each of the portions comprises a notch, and the notches are aligned.
  • a portion of a strip extends along and/or in a side of the plate.
  • a first portion of the strip extends along and/or in a first side of the plate and a second portion of the strip extends along and/or in a second side of the plate, the second side extending at a right angle with the first side.
  • Hooks extending in lateral direction imply a more complicated distribution and transfer of forces from the plate of the shelf via the hooks to the posts, compared to shelves comprising hooks extending in longitudinal direction.
  • these hooks made from a metal strip, both the short sides and the long sides of the plate are directly supported by the hooks, i.e. the long sides via the inner legs of the hooks and the short sides via the outer legs of the hooks.
  • the shelves are rectangular and elongated and comprise a hook at each corner. It is further preferred that the shelves have a length in a range from 1250 to 1350 mm, e.g. 1320 mm, and a width in a range from 530 to 570 mm, e.g. 550 mm.
  • the invention further relates to a pool comprising more than a thousand, preferably more than ten thousand, preferably more than a hundred thousand trolleys as described above.
  • the invention further relates a method of modifying a trolley comprising a plurality of rectangular and elongated shelves comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks extending in longitudinal direction, i.e. in a direction parallel to or having a component parallel to the long sides of the shelf, and a plurality of posts (also known as pillars or uprights) provided with a series of openings receiving the hooks, the method comprising the steps of removing the shelves from the trolley, when applicable lifting the posts from the holders, turning the posts a quarter turn (90 degrees or approximately 90 degrees), when applicable placing the posts back into the holders, and placing shelves comprising a plate and hooks extending in transverse direction in the trolley.
  • each of the posts of the trolley is turned to a position where the series of openings faces the longitudinal vertical plane of the trolley.
  • Figures 1 and 2 show a trolley 1 for carrying goods, such as potted plants and flowers, comprising a rectangular and elongated frame 2 provided with four wheels 3 at its underside near each corner and a holder 4 for a post 5 at each corner.
  • a post 5 is placed in each holder.
  • the holders and posts all have a square cross-section with the posts having an outer dimensions (width) that are slightly smaller than de inner dimensions of the holders.
  • the posts are slidably and removably positioned in de holders in one of four positions.
  • Each post has on one of its four sides a series of openings 6 and on the side opposite from the openings a slot 7 running the length of the post.
  • a plurality of shelves 10 is mounted in the trolley.
  • FIGs 3 and 4 show a single rectangular and elongated shelf 10 suitable to be mounted in the trolley 1 shown in Figures 1 and 2 .
  • the shelf had a plate 11 providing a planar top surface 12 for carrying goods.
  • a plurality of box girders 13 is formed on and/or attached to the bottom surface of the plate, to render the shelf sufficiently stiff.
  • the long and short edges of the plate are provided with raised edges 14.
  • the shelf has a hook 20 at each corner. With these hooks, the shelf 10 can be mounted at a selected height in the trolley by tilting the shelf, inserting a pair of hooks in openings at the selected height, lowering the shelf until it is horizontal and slightly shifting the shelf to insert the pair of hooks on the opposite side of the shelf in openings 6 in the posts 5 on the opposite side of the trolley 1.
  • the hooks 20 are made from a strip 21 of resilient steel having a yield strength of 600 MPa and a thickness of 2 mm and a height of 20 mm. At both ends, the strip is bent about an axis A extending in the height direction of the strip (perpendicular to the central plane of the plate in the finished shelf). Two notches 22 are provided near each end of the strip, which notches align after bending the strip about axis A, thus forming hooks.
  • the strip is provided with a plurality of holes 23, that allow e.g. clinching the ends of the plate to the strip, and four notches.
  • the strip is bent, at each end, at three further positions and all about axes extending in the height direction of the strip, to form portions 24 for clinching the plate to the strip, portions 25 for closing off and end of a box girder in the plate and portions 26 extending in a box girder in the plate.
  • the plate 11 is clinched to the strip 21 by folding edge portions of the plate over the strip and clinching portion of the plate together through the openings 23 in the strip.
  • Identical but mirrored strips are attached to each of the short sides of the shelf, as shown in Figures 3 and 8.
  • the trolley was obtained by modifying a trolley having shelves with hooks extending in longitudinal direction, more specifically by removing the shelves from the trolley 1, lifting the posts 5 from the holders 4, turning the posts a quarter turn to a position where the series of openings 6 of each of the posts faces the (imaginary) longitudinal vertical plane of the trolley 1, placing the posts 5 back into the holders 4, and placing the shelves 10 comprising hooks 20 extending in transverse direction in the trolley 1.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Handcart (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Description

  • The invention relates to a method of modifying a trolley comprising a plurality of rectangular and elongated shelves comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks, preferably a hook at each corner of the plate, and a plurality of posts, typically four, i.e. one at each corner of the trolley, provided with a series of openings, e.g. slots, receiving the hooks. The invention further relates to a pool of trolleys and a trolley.
  • Trolleys for potted plants, flower et cetera are known in the art, e.g. from EP 2 340 978 , which relates to a "holder (20) for the reduction of noise from a shelf mounted on the pillars (50) of a load carrier by means of holders. The holder is introduced into complementary slots in the pillars (50) and is configured with a notch (22) having a carrier face. Hereby the holder is able to engage with the slot in such a manner that the holder has bearing on the pillar. The holder comprises a resilient element (30) arranged in the notch to the effect that the resilient element (30) causes the carrier face to not enter into contact with the pillar when the shelf is not loaded with goods; and that the resilient element is compressed when a load of goods is loaded onto the shelf."
  • DK 2000 01677 relates to a method and installation for separating and assembly of shelf containers which involve the containers having a base frame, removable corner uprights and shelves. EP1686037 relates to a shelf for a trolley comprising a plate providing a surface for carrying goods, and hooks for mounting the shelf in the trolley. One or more of the hooks are formed from a metal stripe bent about an axis extending perpendicular to the central plane plate.
  • US 2003/160409 relates to a wheeled agricultural cart for transporting plant materials having at least one removable shelf. The cart has vertical pillars at each corner thereof with a plurality of substantially rectangular vertical slots. Each shelf has a frame including downward facing hook members at each corner thereof. The shelf is removably attached to the cart by insertion of each hook member into a slot on a corresponding vertical pillar.
  • At www.bc-container.de, a container shelf is disclosed having hooks extending in lateral direction and posts comprising series of openings on adjoining sides.
  • The trolley according to the present invention is intended for use as returnable transport trolley, i.e. a trolley that is part of a vast and open pool of trolleys, e.g. hundreds of thousands or more, for moving goods in standard sizes. Such a pool facilitates logistics from producers via wholesalers, cross-docking, and/or storage to retailers and vice versa. An open pool enables free exchange of trolleys, which saves time, transport costs, and administration. Empty trolleys can be exchanged for trolleys carrying goods, or the other way round, all through the supply chain.
  • Such pools are typically owned, managed, and maintained by one or few entities and items from the pool are hired and used by many entities. Maintaining a pool is a costly affair, especially when the pool ages and/or when similar, cheaper items of an inferior quality are added to the pool by third parties to avoid having to hire shelfs.
  • Replacing a pool requires much time and involves complicated logistics, especially when the pool comprises millions or tens of millions of items or parts, such as shelves and posts. Implementing innovations in the new pool may complicate logistics.
  • JP H10 167075 discloses a trolley wherein the hooks extend in lateral direction, i.e. in a direction parallel to or having a component parallel to the short sides of the shelf, and a series of openings is provided in precisely one side of the posts, or in precisely two and opposite sides of the posts.
  • The present invention addresses the vastly complex replacement of an existing pool of millions of trolleys comprising tens of millions of shelves with a new pool.
  • It is an object of the present invention to reduce the costs of such replacement and to simplify logistics during replacement of the existing (old) pool with a new pool, while at the same time preventing shelves from the old pool from being used in the new (replaced) pool.
  • To this end, according to the present invention a method is proposed of modifying a trolley comprising a plurality of rectangular and elongated shelves comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks extending in longitudinal direction, and a plurality of posts provided with a series of openings receiving the hooks, wherein the method comprises the steps of
    removing the shelves from the trolley,
    turning the posts a quarter turn, and
    placing shelves comprising a plate and hooks extending in transverse direction in the trolley. The combination of such turned posts and shelves having such hooks prevents or at least hinders existing shelves having hooks extending in longitudinal direction from being used in the new pool.
  • In an embodiment, the trolley comprises a rectangular and elongated frame provided with a holder for a post at each corner and a post is placed in each holder. In a refinement, the holders and posts all have a square cross-section with the posts having outer dimensions that are slightly smaller than de inner dimensions of the holders, i.e. the posts are slidably and removably positioned in de holders in one of four positions. Thus, existing trolleys can be modified in a straightforward manner, as will be explained in more detail below, and existing posts can be re-used in a new pool of (modified) trolleys. In principle, it suffices to only replace the shelves.
  • In an embodiment, one or more of the hooks are formed from a metal strip bent about an axis extending perpendicular to the central plane of the plate.
  • In a refinement, the hooks comprise two portions of a strip, preferably diverging or parallel portions, each of the portions comprises a notch, and the notches are aligned.
  • In an embodiment, a portion of a strip extends along and/or in a side of the plate.
  • In another embodiment, a first portion of the strip extends along and/or in a first side of the plate and a second portion of the strip extends along and/or in a second side of the plate, the second side extending at a right angle with the first side.
  • Hooks extending in lateral direction imply a more complicated distribution and transfer of forces from the plate of the shelf via the hooks to the posts, compared to shelves comprising hooks extending in longitudinal direction. With these hooks made from a metal strip, both the short sides and the long sides of the plate are directly supported by the hooks, i.e. the long sides via the inner legs of the hooks and the short sides via the outer legs of the hooks.
  • It is preferred that the shelves are rectangular and elongated and comprise a hook at each corner. It is further preferred that the shelves have a length in a range from 1250 to 1350 mm, e.g. 1320 mm, and a width in a range from 530 to 570 mm, e.g. 550 mm.
  • The invention further relates to a pool comprising more than a thousand, preferably more than ten thousand, preferably more than a hundred thousand trolleys as described above.
  • The invention further relates a method of modifying a trolley comprising a plurality of rectangular and elongated shelves comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks extending in longitudinal direction, i.e. in a direction parallel to or having a component parallel to the long sides of the shelf, and a plurality of posts (also known as pillars or uprights) provided with a series of openings receiving the hooks, the method comprising the steps of removing the shelves from the trolley, when applicable lifting the posts from the holders, turning the posts a quarter turn (90 degrees or approximately 90 degrees), when applicable placing the posts back into the holders, and placing shelves comprising a plate and hooks extending in transverse direction in the trolley. In an embodiment of the trolley and method of the present invention, each of the posts of the trolley is turned to a position where the series of openings faces the longitudinal vertical plane of the trolley.
    • Figure 1 is a perspective view of a trolley carrying a plurality of shelves according to the present invention.
    • Figure 2 is a detail of Figure 1, showing a corner of a shelf hooked in a corner post of the trolley.
    • Figures 3 and 4 are perspective top views of a shelf and a cross-sectioned shelf according to the present invention.
    • Figures 5 to 7 show details of a hook portion of te shelf is a detail of the shelf shown in Figure 3.
  • Figures 1 and 2 show a trolley 1 for carrying goods, such as potted plants and flowers, comprising a rectangular and elongated frame 2 provided with four wheels 3 at its underside near each corner and a holder 4 for a post 5 at each corner. A post 5 is placed in each holder. In this example, the holders and posts all have a square cross-section with the posts having an outer dimensions (width) that are slightly smaller than de inner dimensions of the holders. Thus, the posts are slidably and removably positioned in de holders in one of four positions. Each post has on one of its four sides a series of openings 6 and on the side opposite from the openings a slot 7 running the length of the post. A plurality of shelves 10 is mounted in the trolley.
  • Figures 3 and 4 show a single rectangular and elongated shelf 10 suitable to be mounted in the trolley 1 shown in Figures 1 and 2. The shelf had a plate 11 providing a planar top surface 12 for carrying goods. A plurality of box girders 13 is formed on and/or attached to the bottom surface of the plate, to render the shelf sufficiently stiff. The long and short edges of the plate are provided with raised edges 14.
  • The shelf has a hook 20 at each corner. With these hooks, the shelf 10 can be mounted at a selected height in the trolley by tilting the shelf, inserting a pair of hooks in openings at the selected height, lowering the shelf until it is horizontal and slightly shifting the shelf to insert the pair of hooks on the opposite side of the shelf in openings 6 in the posts 5 on the opposite side of the trolley 1.
  • As shown in Figures 5 and 6, the hooks 20 are made from a strip 21 of resilient steel having a yield strength of 600 MPa and a thickness of 2 mm and a height of 20 mm. At both ends, the strip is bent about an axis A extending in the height direction of the strip (perpendicular to the central plane of the plate in the finished shelf). Two notches 22 are provided near each end of the strip, which notches align after bending the strip about axis A, thus forming hooks.
  • The strip is provided with a plurality of holes 23, that allow e.g. clinching the ends of the plate to the strip, and four notches.
  • In this example, the strip is bent, at each end, at three further positions and all about axes extending in the height direction of the strip, to form portions 24 for clinching the plate to the strip, portions 25 for closing off and end of a box girder in the plate and portions 26 extending in a box girder in the plate.
  • The plate 11 is clinched to the strip 21 by folding edge portions of the plate over the strip and clinching portion of the plate together through the openings 23 in the strip. Identical but mirrored strips are attached to each of the short sides of the shelf, as shown in Figures 3 and 8.
  • The trolley was obtained by modifying a trolley having shelves with hooks extending in longitudinal direction, more specifically by removing the shelves from the trolley 1, lifting the posts 5 from the holders 4, turning the posts a quarter turn to a position where the series of openings 6 of each of the posts faces the (imaginary) longitudinal vertical plane of the trolley 1, placing the posts 5 back into the holders 4, and placing the shelves 10 comprising hooks 20 extending in transverse direction in the trolley 1.
  • The invention is not restricted to the above-described embodiments, which can be varied in a number of ways within the scope of the claims. For instance, a series of openings can be provided in precisely two and opposite sides of the posts.

Claims (12)

  1. Method of modifying a trolley (1) comprising a plurality of rectangular and elongated shelves (10) comprising a plate (11) providing a surface (12) for carrying goods, such as potted plants and flowers, and hooks extending in longitudinal direction, and a plurality of posts (5) provided with a series of openings (6) receiving the hooks, characterized by the method comprising the steps of
    removing the shelves from the trolley (1),
    turning the posts (5) a quarter turn, and
    placing shelves (10) comprising a plate (11) and hooks (20) extending in transverse direction in the trolley (1) .
  2. Method according to claim 1, wherein the trolley (1) comprises a rectangular and elongated frame (2) provided with holder (4) for a post (5) at each corner, wherein a post (5) is placed in each holder (4), and wherein the holders (4) and posts (5) all have a square cross-section with the posts (5) having outer dimensions that are slightly smaller than de inner dimensions of the holders, the method comprising the steps of
    removing the shelves from the trolley (1),
    lifting the posts (5) from the holders (4), turning the posts (5) a quarter turn,
    placing the posts (5) back into the holders (4), and
    placing shelves (10) comprising a plate (11) and hooks (20) extending in transverse direction in the trolley (1) .
  3. Method according to claim 2, wherein each of the posts (5) of the trolley is turned to a position where the series of openings (6) faces the longitudinal vertical plane of the trolley (1).
  4. Trolley (1) comprising a plurality of rectangular and elongated shelves (10) comprising a plate (11) providing a surface (12) for carrying goods, such as potted plants and flowers, and hooks (20), and a plurality of posts provided with a series of openings (6), e.g. slots, receiving the hooks (20), wherein the hooks (20) extend in lateral direction and in that a series of openings (6) is provided in precisely one side of the posts (5) or in precisely two and opposite sides of the posts (5), and wherein one or more of the hooks (20) are formed from a metal strip (21) bent about an axis (A) extending perpendicular to the central plane of the plate (11), characterized in that the hooks (20) comprise two portions of a strip (21), preferably diverging or parallel portions, each of the portions comprises a notch (22), and the notches (22) are aligned, thus forming hooks.
  5. Trolley (1) according to claim 4, wherein a series of openings (6) is provided in precisely one side of each of the posts (5) or in precisely two and opposite sides of each of the posts (5).
  6. Trolley (1) according to claim 4 or 5, comprising a rectangular and elongated frame (2) provided with a holder (4) for a post (5) at each corner, wherein a post (5) is placed in each holder (4).
  7. Trolley (1) according to claim 6, wherein the holders (4) and posts (5) all have a square cross-section with the posts (5) having outer dimensions that are slightly smaller than de inner dimensions of the holders (4).
  8. Trolley (1) according to any one of claims 4 - 7, wherein a portion (26) of a strip (21) extends along and/or in a side of the plate (11).
  9. Trolley (1) according to claim 8, wherein a first portion (26) of the strip (21) extends along and/or in a first side of the plate (11) and a second portion of a strip (21) extends along and/or in a second side of the plate (11), the second side extending at a right angle with the first side.
  10. Trolley (1) according to any one of claims 4-9, wherein a portion (26) of a strip (21) extends in a channel or girder (13) of the plate (11).
  11. Trolley (1) according to any one of the preceding claims 4-10 wherein the shelves have a length in a range from 1250 to 1350 mm and a width in a range from 530 to 570 mm.
  12. Pool comprising more than a thousand, preferably more than ten thousand, preferably more than a hundred thousand trolleys (1) according to any one of the preceding claims 4-11.
EP16186164.6A 2015-08-31 2016-08-29 Trolley for carrying goods Active EP3141454B1 (en)

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NL2015372A NL2015372B1 (en) 2015-08-31 2015-08-31 Trolley for carrying goods.

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Also Published As

Publication number Publication date
EP3141454A1 (en) 2017-03-15
US10538261B2 (en) 2020-01-21
PL3141454T3 (en) 2020-07-13
NL2015372B1 (en) 2017-05-24
NL2015372A (en) 2017-04-06
DK3141454T3 (en) 2020-05-18
US20170057531A1 (en) 2017-03-02
ES2791334T3 (en) 2020-11-03

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